CVE-2026-40225

Publication date 10 April 2026

Last updated 6 June 2026

Ubuntu priority

Cvss 3 Severity Score

Description

In udev in systemd before 260, local root execution can occur via malicious hardware devices and unsanitized kernel output.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
systemd	26.04 LTS resolute	Not affected
	25.10 questing	Fixed 257.9-0ubuntu2.3
	24.04 LTS noble	Fixed 255.4-1ubuntu8.14
	22.04 LTS jammy	Fixed 249.11-0ubuntu3.19
	20.04 LTS focal	Fixed 245.4-4ubuntu3.24+esm3
	18.04 LTS bionic	Not affected
	16.04 LTS xenial	Not affected
	14.04 LTS trusty	Not affected

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Notes

mdeslaur

Fixed in 260 259.5 258.7 257.13 This was fixed by USN-8119-1 and USN-8119-2 but at the time, no CVE had been assigned to this.

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
systemd	Upstream: 03bb697 Upstream: 5887e72 Upstream: 16325b3 Upstream: 54f880b

Severity score breakdown

Parameter	Value
Base score	6.4 · Medium
Attack vector	Physical
Attack complexity	High
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H